n.桶；一桶之量；圆筒，活塞筒，滚筒；圆筒adj.桶状的；vt.装进桶里，放进桶里；vi.高速行驶； 变形： 复数：barrels过去式：barrelled过去分词：barrelled现在分词：barrelling第三人称单数：barrels 双语释义：n.(名词)[C]桶 large round container with flat ends and bulging in the middle, made of wood, metal or plastic[C]枪〔炮〕管 a long tube-sh